content: /*
   * Copyright 2011-2016 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package ix;
  
  import java.util.*;
  
  final class IxEmpty extends Ix<Object> implements Iterator<Object> {
  
      static final IxEmpty INSTANCE = new IxEmpty();
  
      @SuppressWarnings("unchecked")
      static <T> Ix<T> instance() {
          return (Ix<T>)INSTANCE;
      }
  
      @Override
      public Iterator<Object> iterator() {
          return this;
      }
  
      @Override
      public boolean hasNext() {
          return false;
      }
  
      @Override
      public Object next() {
          throw new NoSuchElementException();
      }
  
      @Override
      public void remove() {
          throw new UnsupportedOperationException();
      }
  }
  